Question

I’ve just inherited some C++ code that was written poorly with one cpp file which contained the main and a bunch of other functions. There are also .h files that contain classes and their function definitions.

Until now the program was compiled using the command g++ main.cpp. Now that I’ve separated the classes to .h and .cpp files do I need to use a makefile or can I still use the g++ main.cpp command?

Answer 1

list all the other cpp files after main.cpp.

ie

g++ main.cpp other.cpp etc.cpp

and so on.

Or you can compile them all individually. You then link all the resulting “.o” files together.